ACL Race Bearing Nissan RB25/RB30 Standard Size Main Bearing Set

ACL Race Main Bearings Nissan Skyline - RB25DET & RB30DET

Designed to withstand high RPM, temperatures and load, these high strength bearings are manufactured by ACL from 3 layers of hardened steel, copper and nickel. This "trimetal" composition substantially lowers friction, and thus reduces the operating temperatures while providing superior lubrication.